在PM2.5及其组成部分和心血管疾病之间的正常化差异植被指数的调解作用:来自CHARLS的证据
Huanjin Zhu1, Keng Lin1, Weiling Liu2
1Department of Clinical Laboratory, The Maternal and Children Health Care Hospital (Huzhong Hospital) of Huadu, Guangzhou, Guangdong, China.
BMJ open
|June 19, 2025
概括
接触细颗粒物 (PM2.5) 会增加心血管疾病 (CVD) 的风险. 通过正常化差异植被指数 (NDVI) 测量的绿色空间增加可能会减轻这些不利的健康影响.
科学领域:
- 环境健康 环境健康
- 心血管流行病学心血管流行病学
- 公共卫生 公共卫生
背景情况:
- 心血管疾病 (CVD) 仍然是全球主要的死亡原因.
- 暴露于细颗粒物 (PM2.5) 是心血管疾病的重要环境风险因素.
- 绿色空间在减轻空气污染对健康的影响方面的潜在作用需要进一步研究.
研究的目的:
- 检查PM2.5暴露及其组分与心血管疾病发病率之间的关联.
- 调查正常化差异植被指数 (NDVI) 对PM2.5和心血管疾病之间的关系的中介作用.
- 探索与结算类型的潜在相互作用.
主要方法:
- 利用了来自中国健康与退休长度研究 (CHRLS) 第4波和第5波 (n=11,279) 的数据.
- 使用有限立方线的物流回归来评估PM2.5和组件与心血管疾病的关联.
- 进行调解分析以评估NDVI的作用和按结算类型进行分层分析.
主要成果:
- 增加1μg/m3的PM2.5度与心血管疾病风险增加2.1%有关.
- PM2.5成分 (硫酸盐,,酸盐,有机物质,黑碳) 也显示出与心血管疾病的正相关性.
- 在PM2.5-CVD关联中,NDVI显著调解了42.27%-56.13%,根据定居点类型而有所不同.
结论:
- 暴露于PM2.5及其组成部分显著提高心血管疾病风险.
- 增加绿色空间 (NDVI) 显示了减轻PM2.5对心血管的不良影响的潜力.
- 考虑到定居点类型的有针对性的干预措施可能会提高公共卫生结果.
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